理学最新文献_第7页

Chip-integrated quantum signature network over 200 km

Light-Science & Applications Pub Date : 2025-03-04 DOI: 10.1038/s41377-025-01775-4

Yongqiang Du, Bing-Hong Li, Xin Hua, Xiao-Yu Cao, Zhengeng Zhao, Feng Xie, Zhenrong Zhang, Hua-Lei Yin, Xi Xiao, Kejin Wei

{"title":"Chip-integrated quantum signature network over 200 km","authors":"Yongqiang Du, Bing-Hong Li, Xin Hua, Xiao-Yu Cao, Zhengeng Zhao, Feng Xie, Zhenrong Zhang, Hua-Lei Yin, Xi Xiao, Kejin Wei","doi":"10.1038/s41377-025-01775-4","DOIUrl":"https://doi.org/10.1038/s41377-025-01775-4","url":null,"abstract":"The development of quantum networks is paramount towards practical and secure communications. Quantum digital signatures (QDS) offer an information-theoretically secure solution for ensuring data integrity, authenticity, and non-repudiation, rapidly growing from proof-of-concept to robust demonstrations. However, previous QDS systems relied on expensive and bulky optical equipment, limiting large-scale deployment and reconfigurable networking construction. Here, we introduce and verify a chip-based QDS network, placing the complicated and expensive measurement devices in the central relay while each user needs only a low-cost transmitter. We demonstrate the network with a three-node setup using an integrated encoder chip and decoder chip. By developing a 1-decoy-state one-time universal hashing-QDS protocol, we achieve a maximum signature rate of 0.0414 times per second for a 1 Mbit messages over fiber distances up to 200 km, surpassing all current state-of-the-art QDS experiments. This study validates the feasibility of chip-based QDS, paving the way for large-scale deployment and integration with existing fiber infrastructure.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143538672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unlocking the potential of up-conversion charging for rapid and high-resolution optical storage with phosphors

Light-Science & Applications Pub Date : 2025-03-04 DOI: 10.1038/s41377-025-01746-9

Lu Chen, Xueqing Liu, Feng Liu, Chuan Liao, Liangliang Zhang, Jiahua Zhang, Xiao-jun Wang, Yichun Liu

{"title":"Unlocking the potential of up-conversion charging for rapid and high-resolution optical storage with phosphors","authors":"Lu Chen, Xueqing Liu, Feng Liu, Chuan Liao, Liangliang Zhang, Jiahua Zhang, Xiao-jun Wang, Yichun Liu","doi":"10.1038/s41377-025-01746-9","DOIUrl":"https://doi.org/10.1038/s41377-025-01746-9","url":null,"abstract":"Current optical storage technologies utilizing phosphor media face challenges in achieving rapid and precise data recording with visible or infrared light, primarily due to the constraints of traditional charging techniques. Here, we introduce a cutting-edge method termed up-conversion charging (UCC) to address these challenges, enabling rapid and high-resolution data storage in phosphors. Our study focuses on the unique two-step ionization and non-linear charging characteristics of UCC in storage phosphors, specifically in a gallate composition Gd3Ga5O12:Cr3+. Remarkably, this technique enables data writing with high solution, requiring only 0.01 s of exposure per bit when utilizing a portable laser engraver equipped with visible-emitting diode lasers. The present strategy not only enhances recording efficiency but also ensures long-term data retention and superior rewritability. Moreover, we illustrate the versatility of UCC storage across various material systems through thermally- and optically-stimulated luminescence. Our outcomes highlight the transformative potential of the UCC method in advancing optical storage applications, offering significant improvements in the development of information storage solutions.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143538675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Outside Back Cover

IF 6.4 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2025-03-01 DOI: 10.1016/S2588-9133(25)00023-7

引用次数: 0

Thank you reviewers!

IF 6.4 3区环境科学与生态学

Carbon Resources Conversion Pub Date : 2025-03-01 DOI: 10.1016/j.crcon.2025.100314

引用次数: 0

A large field of view 2- and 3-photon microscope

Light-Science & Applications Pub Date : 2025-02-27 DOI: 10.1038/s41377-025-01780-7

Jack Waters

引用次数: 0

3R-WS2 crystals as a breakthrough in compact entangled photon sources

Light-Science & Applications Pub Date : 2025-02-27 DOI: 10.1038/s41377-024-01688-8

引用次数: 0

Optical sorting: past, present and future

Light-Science & Applications Pub Date : 2025-02-27 DOI: 10.1038/s41377-024-01734-5

Meng Yang, Yuzhi Shi, Qinghua Song, Zeyong Wei, Xiong Dun, Zhiming Wang, Zhanshan Wang, Cheng-Wei Qiu, Hui Zhang, Xinbin Cheng

{"title":"Optical sorting: past, present and future","authors":"Meng Yang, Yuzhi Shi, Qinghua Song, Zeyong Wei, Xiong Dun, Zhiming Wang, Zhanshan Wang, Cheng-Wei Qiu, Hui Zhang, Xinbin Cheng","doi":"10.1038/s41377-024-01734-5","DOIUrl":"https://doi.org/10.1038/s41377-024-01734-5","url":null,"abstract":"Optical sorting combines optical tweezers with diverse techniques, including optical spectrum, artificial intelligence (AI) and immunoassay, to endow unprecedented capabilities in particle sorting. In comparison to other methods such as microfluidics, acoustics and electrophoresis, optical sorting offers appreciable advantages in nanoscale precision, high resolution, non-invasiveness, and is becoming increasingly indispensable in fields of biophysics, chemistry, and materials science. This review aims to offer a comprehensive overview of the history, development, and perspectives of various optical sorting techniques, categorised as passive and active sorting methods. To begin, we elucidate the fundamental physics and attributes of both conventional and exotic optical forces. We then explore sorting capabilities of active optical sorting, which fuses optical tweezers with a diversity of techniques, including Raman spectroscopy and machine learning. Afterwards, we reveal the essential roles played by deterministic light fields, configured with lens systems or metasurfaces, in the passive sorting of particles based on their varying sizes and shapes, sorting resolutions and speeds. We conclude with our vision of the most promising and futuristic directions, including AI-facilitated ultrafast and bio-morphology-selective sorting. It can be envisioned that optical sorting will inevitably become a revolutionary tool in scientific research and practical biomedical applications.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143507011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photon-triggered pyroptosis and ferroptosis dual-functional nanoplatform for cancer immunotherapy

Light-Science & Applications Pub Date : 2025-02-27 DOI: 10.1038/s41377-025-01757-6

Quansheng Cheng, Qingcheng Wang, Songnan Qu

引用次数: 0

Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes

Light-Science & Applications Pub Date : 2025-02-26 DOI: 10.1038/s41377-025-01768-3

Mubing Yu, Tingxiao Qin, Gang Gao, Kelei Zu, Dongming Zhang, Nan Chen, Dengke Wang, Yong Hua, Hong Zhang, Yong-Biao Zhao, Jiaqi Zhu

{"title":"Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes","authors":"Mubing Yu, Tingxiao Qin, Gang Gao, Kelei Zu, Dongming Zhang, Nan Chen, Dengke Wang, Yong Hua, Hong Zhang, Yong-Biao Zhao, Jiaqi Zhu","doi":"10.1038/s41377-025-01768-3","DOIUrl":"https://doi.org/10.1038/s41377-025-01768-3","url":null,"abstract":"Deep-blue perovskite light-emitting diodes (PeLEDs) based on reduced-dimensional perovskites (RDPs) still face a few challenges including severe trap-assisted nonradiative recombination, sluggish exciton transfer, and undesirable bathochromic shift of the electroluminescence spectra, impeding the realization of high-performance PeLEDs. Herein, an in situ chlorination (isCl) post-treatment strategy was employed to regulate phase reconstruction and renovate multiple defects of RDPs, leading to superior carrier cooling of 0.88 ps, extraordinary exciton binding energy of 122.53 meV, and higher photoluminescence quantum yield of 60.9% for RDP films with deep-blue emission at 450 nm. The phase regulation is accomplished via fluorine-derived hydrogen bonds that suppress the formation of small-n phases. Multiple defects, including halide vacancies (shallow-state defects) and lead-chloride antisite defects (deep-state defects), are renovated via C=O coordination and hydroxy-group-derived hydrogen bonds. Consequently, deep-blue PeLEDs with a record maximum external quantum efficiency of 6.17% and stable electroluminescence at 454 nm were demonstrated, representing the best-performing deep-blue PeLEDs.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coherence synthesis in nonlinear optics 非线性光学中的相干合成

Light-Science & Applications Pub Date : 2025-02-26 DOI: 10.1038/s41377-025-01749-6

Zihao Pang, Ady Arie

{"title":"Coherence synthesis in nonlinear optics","authors":"Zihao Pang, Ady Arie","doi":"10.1038/s41377-025-01749-6","DOIUrl":"https://doi.org/10.1038/s41377-025-01749-6","url":null,"abstract":"It is commonly assumed that nonlinear frequency conversion requires lasers with high coherence; however, this assumption has constrained our broader understanding of coherence and overlooked the potential role of incoherence in nonlinear interactions. In this work, we study the synthesis of optical spatial coherence in second harmonic generation using quadratic nonlinear photonic crystals. We demonstrate a method where the second harmonic coherence is customized by employing quantitative phase retrieval and a complex square-root filter sequentially on fundamental frequency speckles. As a proof-of-concept, we experimentally show incoherent imaging of a smiley face transitioning from infrared to visible light. Moreover, we apply this method to produce two representative types of structured light beams in second harmonic generation: incoherent vortex and Airy beams. During the nonlinear synthesis of incoherent vortex beams, we have, for the first time, experimentally verified the conservation of orbital angular momentum in the nonlinear frequency conversion process of a low-coherence source. Furthermore, the generated second-harmonic incoherent Airy beam preserves the self-acceleration characteristics of its fundamental frequency counterpart, remaining unaffected by reductions in coherence. Our results not only deepen the fundamental understanding of optical coherence but also unlock exciting possibilities for applications in infrared imaging and fluorescence microscopy where optical nonlinear interactions play an important role.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"29 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0